Commit | Line | Data |
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95ed0025 | 1 | /* Utility and Unix shadow routines for GNU Emacs on Windows NT. |
35f0d482 | 2 | Copyright (C) 1994, 1995 Free Software Foundation, Inc. |
95ed0025 RS |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify it | |
7 | under the terms of the GNU General Public License as published by the | |
35f0d482 | 8 | Free Software Foundation; either version 2, or (at your option) any later |
95ed0025 RS |
9 | version. |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, but WITHOUT | |
12 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
14 | more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License along | |
17 | with GNU Emacs; see the file COPYING. If not, write to the Free Software | |
18 | Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
19 | ||
20 | Geoff Voelker (voelker@cs.washington.edu) 7-29-94 | |
21 | */ | |
22 | ||
35f0d482 KH |
23 | /* Define stat before including config.h. */ |
24 | #include <string.h> | |
25 | #include <sys/stat.h> | |
26 | int | |
27 | nt_stat (char *filename, struct stat *statbuf) | |
28 | { | |
29 | int r, l = strlen (filename); | |
30 | char *str = NULL; | |
31 | extern long *xmalloc (); | |
32 | extern void xfree (); | |
33 | ||
34 | /* stat has a bug when passed a name of a directory with a trailing | |
35 | backslash (but a trailing forward slash works fine). */ | |
36 | if (filename[l - 1] == '\\') | |
37 | { | |
38 | str = (char *) xmalloc (l + 1); | |
39 | strcpy (str, filename); | |
40 | str[l - 1] = '/'; | |
41 | r = stat (str, statbuf); | |
42 | xfree (str); | |
43 | return r; | |
44 | } | |
45 | else | |
46 | return stat (filename, statbuf); | |
47 | } | |
48 | ||
49 | /* Place a wrapper around the NT version of ctime. It returns NULL | |
50 | on network directories, so we handle that case here. | |
51 | Define it before including config.h. (Ulrich Leodolter, 1/11/95). */ | |
52 | char * | |
53 | nt_ctime (const time_t *t) | |
54 | { | |
55 | char *str = (char *) ctime (t); | |
56 | return (str ? str : "Sun Jan 01 00:00:00 1970"); | |
57 | } | |
58 | ||
6816efce | 59 | #include <config.h> |
95ed0025 RS |
60 | #include <windows.h> |
61 | #include <stdlib.h> | |
62 | #include <stdio.h> | |
63 | #include <io.h> | |
64 | #include <fcntl.h> | |
65 | #include <ctype.h> | |
66 | ||
95ed0025 RS |
67 | #define getwd _getwd |
68 | #include "lisp.h" | |
69 | #undef getwd | |
70 | ||
71 | #include <pwd.h> | |
72 | ||
73 | #include "ndir.h" | |
74 | #include "ntheap.h" | |
75 | ||
76 | extern int report_file_error (char *, Lisp_Object); | |
77 | ||
78 | /* Get the current working directory. */ | |
79 | int | |
80 | getwd (char *dir) | |
81 | { | |
82 | return GetCurrentDirectory (MAXPATHLEN, dir); | |
83 | } | |
84 | ||
85 | /* Emulate gethostname. */ | |
86 | int | |
87 | gethostname (char *buffer, int size) | |
88 | { | |
89 | /* NT only allows small host names, so the buffer is | |
90 | certainly large enough. */ | |
91 | return !GetComputerName (buffer, &size); | |
92 | } | |
93 | ||
94 | /* Emulate getloadavg. */ | |
95 | int | |
96 | getloadavg (double loadavg[], int nelem) | |
97 | { | |
98 | int i; | |
99 | ||
100 | /* A faithful emulation is going to have to be saved for a rainy day. */ | |
101 | for (i = 0; i < nelem; i++) | |
102 | { | |
103 | loadavg[i] = 0.0; | |
104 | } | |
105 | return i; | |
106 | } | |
107 | ||
108 | /* Emulate sleep...we could have done this with a define, but that | |
109 | would necessitate including windows.h in the files that used it. | |
110 | This is much easier. */ | |
111 | void | |
112 | nt_sleep (int seconds) | |
113 | { | |
114 | Sleep (seconds * 1000); | |
115 | } | |
116 | ||
117 | /* Emulate the Unix directory procedures opendir, closedir, | |
118 | and readdir. We can't use the procedures supplied in sysdep.c, | |
119 | so we provide them here. */ | |
120 | ||
121 | struct direct dir_static; /* simulated directory contents */ | |
122 | static int dir_finding; | |
123 | static HANDLE dir_find_handle; | |
124 | ||
125 | DIR * | |
126 | opendir (char *filename) | |
127 | { | |
128 | DIR *dirp; | |
129 | ||
130 | /* Opening is done by FindFirstFile. However, a read is inherent to | |
131 | this operation, so we have a flag to handle the open at read | |
132 | time. This flag essentially means "there is a find-handle open and | |
133 | it needs to be closed." */ | |
134 | ||
135 | if (!(dirp = (DIR *) malloc (sizeof (DIR)))) | |
136 | { | |
137 | return 0; | |
138 | } | |
139 | ||
140 | dirp->dd_fd = 0; | |
141 | dirp->dd_loc = 0; | |
142 | dirp->dd_size = 0; | |
143 | ||
144 | /* This is tacky, but we need the directory name for our | |
145 | implementation of readdir. */ | |
146 | strncpy (dirp->dd_buf, filename, DIRBLKSIZ); | |
147 | return dirp; | |
148 | } | |
149 | ||
150 | void | |
151 | closedir (DIR *dirp) | |
152 | { | |
153 | /* If we have a find-handle open, close it. */ | |
154 | if (dir_finding) | |
155 | { | |
156 | FindClose (dir_find_handle); | |
157 | dir_finding = 0; | |
158 | } | |
159 | xfree ((char *) dirp); | |
160 | } | |
161 | ||
162 | struct direct * | |
163 | readdir (DIR *dirp) | |
164 | { | |
165 | WIN32_FIND_DATA find_data; | |
166 | ||
167 | /* If we aren't dir_finding, do a find-first, otherwise do a find-next. */ | |
168 | if (!dir_finding) | |
169 | { | |
170 | char filename[MAXNAMLEN + 3]; | |
171 | int ln; | |
172 | ||
173 | strncpy (filename, dirp->dd_buf, MAXNAMLEN); | |
174 | ln = strlen (filename)-1; | |
175 | if (filename[ln] != '\\' && filename[ln] != ':') | |
176 | strcat (filename, "\\"); | |
177 | strcat (filename, "*.*"); | |
178 | ||
179 | dir_find_handle = FindFirstFile (filename, &find_data); | |
180 | ||
181 | if (dir_find_handle == INVALID_HANDLE_VALUE) | |
182 | return NULL; | |
183 | ||
184 | dir_finding = 1; | |
185 | } | |
186 | else | |
187 | { | |
188 | if (!FindNextFile (dir_find_handle, &find_data)) | |
189 | return NULL; | |
190 | } | |
191 | ||
95ed0025 RS |
192 | /* NT's unique ID for a file is 64 bits, so we have to fake it here. |
193 | This should work as long as we never use 0. */ | |
194 | dir_static.d_ino = 1; | |
195 | ||
196 | dir_static.d_reclen = sizeof (struct direct) - MAXNAMLEN + 3 + | |
197 | dir_static.d_namlen - dir_static.d_namlen % 4; | |
198 | ||
199 | dir_static.d_namlen = strlen (find_data.cFileName); | |
200 | strncpy (dir_static.d_name, find_data.cFileName, MAXNAMLEN); | |
201 | ||
202 | return &dir_static; | |
203 | } | |
204 | ||
205 | /* Emulate getpwuid and getpwnam. */ | |
206 | ||
207 | int getuid (); /* forward declaration */ | |
208 | ||
051fe60d GV |
209 | #define PASSWD_FIELD_SIZE 256 |
210 | ||
211 | static char the_passwd_name[PASSWD_FIELD_SIZE]; | |
212 | static char the_passwd_passwd[PASSWD_FIELD_SIZE]; | |
213 | static char the_passwd_gecos[PASSWD_FIELD_SIZE]; | |
214 | static char the_passwd_dir[PASSWD_FIELD_SIZE]; | |
215 | static char the_passwd_shell[PASSWD_FIELD_SIZE]; | |
95ed0025 RS |
216 | |
217 | static struct passwd the_passwd = | |
218 | { | |
219 | the_passwd_name, | |
220 | the_passwd_passwd, | |
221 | 0, | |
222 | 0, | |
223 | 0, | |
224 | the_passwd_gecos, | |
225 | the_passwd_dir, | |
226 | the_passwd_shell, | |
227 | }; | |
228 | ||
229 | struct passwd * | |
230 | getpwuid (int uid) | |
231 | { | |
051fe60d | 232 | int size = PASSWD_FIELD_SIZE; |
95ed0025 RS |
233 | |
234 | if (!GetUserName (the_passwd.pw_name, &size)) | |
235 | return NULL; | |
236 | ||
237 | the_passwd.pw_passwd[0] = '\0'; | |
238 | the_passwd.pw_uid = 0; | |
239 | the_passwd.pw_gid = 0; | |
240 | strcpy (the_passwd.pw_gecos, the_passwd.pw_name); | |
241 | the_passwd.pw_dir[0] = '\0'; | |
242 | the_passwd.pw_shell[0] = '\0'; | |
243 | ||
244 | return &the_passwd; | |
245 | } | |
246 | ||
247 | struct passwd * | |
248 | getpwnam (char *name) | |
249 | { | |
250 | struct passwd *pw; | |
251 | ||
252 | pw = getpwuid (getuid ()); | |
253 | if (!pw) | |
254 | return pw; | |
255 | ||
256 | if (strcmp (name, pw->pw_name)) | |
257 | return NULL; | |
258 | ||
259 | return pw; | |
260 | } | |
261 | ||
262 | ||
263 | /* We don't have scripts to automatically determine the system configuration | |
264 | for Emacs before it's compiled, and we don't want to have to make the | |
265 | user enter it, so we define EMACS_CONFIGURATION to invoke this runtime | |
266 | routine. */ | |
267 | ||
bd4a449f | 268 | static char configuration_buffer[32]; |
95ed0025 RS |
269 | |
270 | char * | |
271 | get_emacs_configuration (void) | |
272 | { | |
d1c1c3d2 | 273 | char *arch, *oem, *os; |
95ed0025 | 274 | |
d1c1c3d2 RS |
275 | /* Determine the processor type. */ |
276 | switch (get_processor_type ()) | |
277 | { | |
051fe60d GV |
278 | |
279 | #ifdef PROCESSOR_INTEL_386 | |
d1c1c3d2 RS |
280 | case PROCESSOR_INTEL_386: |
281 | case PROCESSOR_INTEL_486: | |
282 | case PROCESSOR_INTEL_PENTIUM: | |
283 | arch = "i386"; | |
284 | break; | |
051fe60d GV |
285 | #endif |
286 | ||
287 | #ifdef PROCESSOR_INTEL_860 | |
d1c1c3d2 RS |
288 | case PROCESSOR_INTEL_860: |
289 | arch = "i860"; | |
290 | break; | |
051fe60d GV |
291 | #endif |
292 | ||
293 | #ifdef PROCESSOR_MIPS_R2000 | |
d1c1c3d2 RS |
294 | case PROCESSOR_MIPS_R2000: |
295 | case PROCESSOR_MIPS_R3000: | |
296 | case PROCESSOR_MIPS_R4000: | |
297 | arch = "mips"; | |
298 | break; | |
051fe60d GV |
299 | #endif |
300 | ||
301 | #ifdef PROCESSOR_ALPHA_21064 | |
d1c1c3d2 RS |
302 | case PROCESSOR_ALPHA_21064: |
303 | arch = "alpha"; | |
304 | break; | |
051fe60d GV |
305 | #endif |
306 | ||
d1c1c3d2 RS |
307 | default: |
308 | arch = "unknown"; | |
309 | break; | |
310 | } | |
95ed0025 | 311 | |
d1c1c3d2 RS |
312 | /* Let oem be "*" until we figure out how to decode the OEM field. */ |
313 | oem = "*"; | |
95ed0025 | 314 | |
bd4a449f | 315 | #ifdef WINDOWS95 |
d1c1c3d2 | 316 | os = "win"; |
bd4a449f | 317 | #else |
d1c1c3d2 | 318 | os = "nt"; |
bd4a449f GV |
319 | #endif |
320 | ||
d1c1c3d2 RS |
321 | sprintf (configuration_buffer, "%s-%s-%s%d.%d", arch, oem, os, |
322 | get_nt_major_version (), get_nt_minor_version ()); | |
323 | return configuration_buffer; | |
95ed0025 RS |
324 | } |
325 | ||
326 | /* Conjure up inode and device numbers that will serve the purpose | |
327 | of Emacs. Return 1 upon success, 0 upon failure. */ | |
328 | int | |
329 | get_inode_and_device_vals (Lisp_Object filename, Lisp_Object *p_inode, | |
330 | Lisp_Object *p_device) | |
331 | { | |
332 | /* File uids on NT are found using a handle to a file, which | |
333 | implies that it has been opened. Since we want to be able | |
334 | to stat an arbitrary file, we must open it, get the info, | |
335 | and then close it. | |
336 | ||
337 | Also, NT file uids are 64-bits. This is a problem. */ | |
338 | ||
339 | HANDLE handle; | |
340 | BOOL result; | |
35f0d482 | 341 | DWORD attrs; |
95ed0025 RS |
342 | BY_HANDLE_FILE_INFORMATION info; |
343 | ||
35f0d482 KH |
344 | /* We have to stat files and directories differently, so check |
345 | to see what filename references. */ | |
346 | attrs = GetFileAttributes (XSTRING (filename)->data); | |
347 | if (attrs == 0xFFFFFFFF) { | |
348 | return 0; | |
349 | } | |
350 | if (attrs & FILE_ATTRIBUTE_DIRECTORY) { | |
351 | /* Conjure up bogus, but unique, values. */ | |
352 | attrs = GetTickCount (); | |
353 | *p_inode = make_number (attrs); | |
354 | *p_device = make_number (attrs); | |
355 | return 1; | |
356 | } | |
357 | ||
95ed0025 RS |
358 | /* FIXME: It shouldn't be opened without READ access, but NT on x86 |
359 | doesn't allow GetFileInfo in that case (NT on mips does). */ | |
360 | ||
361 | handle = CreateFile (XSTRING (filename)->data, | |
362 | GENERIC_READ, | |
363 | FILE_SHARE_READ | FILE_SHARE_WRITE, | |
364 | NULL, | |
365 | OPEN_EXISTING, | |
366 | FILE_ATTRIBUTE_NORMAL, | |
367 | NULL); | |
368 | if (handle == INVALID_HANDLE_VALUE) | |
369 | return 0; | |
370 | ||
371 | result = GetFileInformationByHandle (handle, &info); | |
372 | CloseHandle (handle); | |
373 | if (!result) | |
374 | return 0; | |
375 | ||
376 | *p_inode = make_number (info.nFileIndexLow); /* use the low value */ | |
377 | *p_device = make_number (info.dwVolumeSerialNumber); | |
378 | ||
379 | return 1; | |
380 | } | |
381 | ||
382 | /* The following pipe routines are used to support our fork emulation. | |
383 | Since NT's crt dup always creates inherited handles, we | |
384 | must be careful in setting up pipes. First create | |
385 | non-inherited pipe handles, then create an inherited handle | |
386 | to the write end by dup-ing it, and then close the non-inherited | |
387 | end that was just duped. This gives us one non-inherited handle | |
388 | on the read end and one inherited handle to the write end. As | |
389 | the parent, we close the inherited handle to the write end after | |
390 | spawning the child. */ | |
391 | ||
392 | /* From callproc.c */ | |
393 | extern Lisp_Object Vbinary_process_input; | |
394 | extern Lisp_Object Vbinary_process_output; | |
395 | ||
396 | void | |
397 | pipe_with_inherited_out (int fds[2]) | |
398 | { | |
399 | int inherit_out; | |
400 | unsigned int flags = _O_NOINHERIT; | |
401 | ||
402 | if (!NILP (Vbinary_process_output)) | |
403 | flags |= _O_BINARY; | |
404 | ||
405 | _pipe (fds, 0, flags); | |
406 | inherit_out = dup (fds[1]); | |
407 | close (fds[1]); | |
408 | fds[1] = inherit_out; | |
409 | } | |
410 | ||
411 | void | |
412 | pipe_with_inherited_in (int fds[2]) | |
413 | { | |
414 | int inherit_in; | |
415 | unsigned int flags = _O_NOINHERIT; | |
416 | ||
417 | if (!NILP (Vbinary_process_input)) | |
418 | flags |= _O_BINARY; | |
419 | ||
420 | _pipe (fds, 0, flags); | |
421 | inherit_in = dup (fds[0]); | |
422 | close (fds[0]); | |
423 | fds[0] = inherit_in; | |
424 | } | |
425 | ||
426 | /* The following two routines are used to manipulate stdin, stdout, and | |
427 | stderr of our child processes. | |
428 | ||
429 | Assuming that in, out, and err are inherited, we make them stdin, | |
430 | stdout, and stderr of the child as follows: | |
431 | ||
432 | - Save the parent's current standard handles. | |
433 | - Set the parent's standard handles to the handles being passed in. | |
434 | (Note that _get_osfhandle is an io.h procedure that | |
435 | maps crt file descriptors to NT file handles.) | |
436 | - Spawn the child, which inherits in, out, and err as stdin, | |
437 | stdout, and stderr. (see Spawnve) | |
438 | - Reset the parent's standard handles to the saved handles. | |
439 | (see reset_standard_handles) | |
440 | We assume that the caller closes in, out, and err after calling us. */ | |
441 | ||
442 | void | |
443 | prepare_standard_handles (int in, int out, int err, HANDLE handles[4]) | |
444 | { | |
445 | HANDLE parent, stdin_save, stdout_save, stderr_save, err_handle; | |
bd4a449f GV |
446 | |
447 | #ifdef WINDOWS95 | |
448 | /* The Win95 beta doesn't set the standard handles correctly. | |
449 | Handicap subprocesses until we get a version that works correctly. | |
450 | Undefining the subprocesses macro reveals other incompatibilities, | |
451 | so, since we're expecting subprocs to work in the near future, | |
452 | disable them here. */ | |
453 | report_file_error ("Subprocesses currently disabled on Win95", Qnil); | |
454 | #endif | |
455 | ||
95ed0025 | 456 | parent = GetCurrentProcess (); |
bd4a449f GV |
457 | stdin_save = GetStdHandle (STD_INPUT_HANDLE); |
458 | stdout_save = GetStdHandle (STD_OUTPUT_HANDLE); | |
459 | stderr_save = GetStdHandle (STD_ERROR_HANDLE); | |
460 | ||
f332b293 | 461 | #ifndef HAVE_NTGUI |
95ed0025 RS |
462 | if (!DuplicateHandle (parent, |
463 | GetStdHandle (STD_INPUT_HANDLE), | |
464 | parent, | |
465 | &stdin_save, | |
466 | 0, | |
467 | FALSE, | |
468 | DUPLICATE_SAME_ACCESS)) | |
469 | report_file_error ("Duplicating parent's input handle", Qnil); | |
470 | ||
471 | if (!DuplicateHandle (parent, | |
472 | GetStdHandle (STD_OUTPUT_HANDLE), | |
473 | parent, | |
474 | &stdout_save, | |
475 | 0, | |
476 | FALSE, | |
477 | DUPLICATE_SAME_ACCESS)) | |
478 | report_file_error ("Duplicating parent's output handle", Qnil); | |
479 | ||
480 | if (!DuplicateHandle (parent, | |
481 | GetStdHandle (STD_ERROR_HANDLE), | |
482 | parent, | |
483 | &stderr_save, | |
484 | 0, | |
485 | FALSE, | |
486 | DUPLICATE_SAME_ACCESS)) | |
487 | report_file_error ("Duplicating parent's error handle", Qnil); | |
f332b293 | 488 | #endif /* !HAVE_NTGUI */ |
95ed0025 RS |
489 | |
490 | if (!SetStdHandle (STD_INPUT_HANDLE, (HANDLE) _get_osfhandle (in))) | |
491 | report_file_error ("Changing stdin handle", Qnil); | |
492 | ||
493 | if (!SetStdHandle (STD_OUTPUT_HANDLE, (HANDLE) _get_osfhandle (out))) | |
494 | report_file_error ("Changing stdout handle", Qnil); | |
495 | ||
496 | /* We lose data if we use the same handle to the pipe for stdout and | |
497 | stderr, so make a duplicate. This took a while to find. */ | |
498 | if (out == err) | |
499 | { | |
500 | if (!DuplicateHandle (parent, | |
501 | (HANDLE) _get_osfhandle (err), | |
502 | parent, | |
503 | &err_handle, | |
504 | 0, | |
505 | TRUE, | |
506 | DUPLICATE_SAME_ACCESS)) | |
507 | report_file_error ("Duplicating out handle to make err handle.", | |
508 | Qnil); | |
509 | } | |
510 | else | |
511 | { | |
512 | err_handle = (HANDLE) _get_osfhandle (err); | |
513 | } | |
514 | ||
515 | if (!SetStdHandle (STD_ERROR_HANDLE, err_handle)) | |
516 | report_file_error ("Changing stderr handle", Qnil); | |
517 | ||
518 | handles[0] = stdin_save; | |
519 | handles[1] = stdout_save; | |
520 | handles[2] = stderr_save; | |
521 | handles[3] = err_handle; | |
522 | } | |
523 | ||
524 | void | |
525 | reset_standard_handles (int in, int out, int err, HANDLE handles[4]) | |
526 | { | |
527 | HANDLE stdin_save = handles[0]; | |
528 | HANDLE stdout_save = handles[1]; | |
529 | HANDLE stderr_save = handles[2]; | |
530 | HANDLE err_handle = handles[3]; | |
bd4a449f GV |
531 | int i; |
532 | ||
f332b293 | 533 | #ifndef HAVE_NTGUI |
95ed0025 RS |
534 | if (!SetStdHandle (STD_INPUT_HANDLE, stdin_save)) |
535 | report_file_error ("Resetting input handle", Qnil); | |
536 | ||
537 | if (!SetStdHandle (STD_OUTPUT_HANDLE, stdout_save)) | |
bd4a449f GV |
538 | { |
539 | i = GetLastError (); | |
540 | report_file_error ("Resetting output handle", Qnil); | |
541 | } | |
95ed0025 RS |
542 | |
543 | if (!SetStdHandle (STD_ERROR_HANDLE, stderr_save)) | |
544 | report_file_error ("Resetting error handle", Qnil); | |
f332b293 | 545 | #endif /* !HAVE_NTGUI */ |
95ed0025 RS |
546 | |
547 | if (out == err) | |
548 | { | |
549 | /* If out and err are the same handle, then we duplicated out | |
550 | and stuck it in err_handle. Close the duplicate to clean up. */ | |
551 | if (!CloseHandle (err_handle)) | |
552 | report_file_error ("Closing error handle duplicated from out.", | |
553 | Qnil); | |
554 | } | |
555 | } | |
556 | ||
35f0d482 KH |
557 | int |
558 | random () | |
559 | { | |
560 | /* rand () on NT gives us 15 random bits...hack together 30 bits. */ | |
561 | return ((rand () << 15) | rand ()); | |
562 | } | |
563 | ||
564 | void | |
565 | srandom (int seed) | |
566 | { | |
567 | srand (seed); | |
568 | } | |
569 | ||
95ed0025 RS |
570 | /* Destructively turn backslashes into slashes. */ |
571 | void | |
572 | dostounix_filename (p) | |
573 | register char *p; | |
574 | { | |
575 | while (*p) | |
576 | { | |
577 | if (*p == '\\') | |
578 | *p = '/'; | |
579 | p++; | |
580 | } | |
581 | } | |
582 | ||
583 | /* Routines that are no-ops on NT but are defined to get Emacs to compile. */ | |
584 | ||
585 | ||
586 | int | |
587 | sigsetmask (int signal_mask) | |
588 | { | |
589 | return 0; | |
590 | } | |
591 | ||
592 | int | |
593 | sigblock (int sig) | |
594 | { | |
595 | return 0; | |
596 | } | |
597 | ||
598 | int | |
599 | kill (int pid, int signal) | |
600 | { | |
601 | return 0; | |
602 | } | |
603 | ||
604 | int | |
605 | setpgrp (int pid, int gid) | |
606 | { | |
607 | return 0; | |
608 | } | |
609 | ||
610 | int | |
611 | alarm (int seconds) | |
612 | { | |
613 | return 0; | |
614 | } | |
615 | ||
616 | int | |
617 | unrequest_sigio (void) | |
618 | { | |
619 | return 0; | |
620 | } | |
621 | ||
622 | int | |
623 | request_sigio (void) | |
624 | { | |
625 | return 0; | |
626 | } | |
627 | ||
628 | int | |
629 | getuid () | |
630 | { | |
03e123e7 GV |
631 | char buffer[256]; |
632 | int size = 256; | |
633 | ||
634 | if (!GetUserName (buffer, &size)) | |
635 | /* Assume all powers upon failure. */ | |
636 | return 0; | |
637 | ||
638 | if (!stricmp ("administrator", buffer)) | |
639 | return 0; | |
640 | else | |
641 | /* A complete fabrication...is there anything to base it on? */ | |
642 | return 123; | |
95ed0025 RS |
643 | } |
644 | ||
645 | int | |
646 | geteuid () | |
647 | { | |
03e123e7 GV |
648 | /* I could imagine arguing for checking to see whether the user is |
649 | in the Administrators group and returning a UID of 0 for that | |
650 | case, but I don't know how wise that would be in the long run. */ | |
651 | return getuid (); | |
95ed0025 RS |
652 | } |
653 | ||
654 | /* Remove all CR's that are followed by a LF. | |
655 | (From msdos.c...probably should figure out a way to share it, | |
656 | although this code isn't going to ever change.) */ | |
657 | int | |
658 | crlf_to_lf (n, buf) | |
659 | register int n; | |
660 | register unsigned char *buf; | |
661 | { | |
662 | unsigned char *np = buf; | |
663 | unsigned char *startp = buf; | |
664 | unsigned char *endp = buf + n; | |
665 | ||
666 | if (n == 0) | |
667 | return n; | |
668 | while (buf < endp - 1) | |
669 | { | |
670 | if (*buf == 0x0d) | |
671 | { | |
672 | if (*(++buf) != 0x0a) | |
673 | *np++ = 0x0d; | |
674 | } | |
675 | else | |
676 | *np++ = *buf++; | |
677 | } | |
678 | if (buf < endp) | |
679 | *np++ = *buf++; | |
680 | return np - startp; | |
681 | } | |
682 | ||
f332b293 GV |
683 | #define REG_ROOT "SOFTWARE\\GNU\\Emacs\\" |
684 | ||
685 | LPBYTE | |
686 | nt_get_resource (key, lpdwtype) | |
687 | char *key; | |
688 | LPDWORD lpdwtype; | |
689 | { | |
690 | LPBYTE lpvalue; | |
691 | HKEY hrootkey = NULL; | |
692 | DWORD cbData; | |
693 | BOOL ok = FALSE; | |
694 | ||
695 | /* Check both the current user and the local machine to see if | |
696 | we have any resources. */ | |
697 | ||
698 | if (RegOpenKeyEx (HKEY_CURRENT_USER, REG_ROOT, 0, KEY_READ, &hrootkey) == ERROR_SUCCESS) | |
699 | { | |
700 | lpvalue = NULL; | |
701 | ||
702 | if (RegQueryValueEx (hrootkey, key, NULL, NULL, NULL, &cbData) == ERROR_SUCCESS | |
703 | && (lpvalue = (LPBYTE) xmalloc (cbData)) != NULL | |
704 | && RegQueryValueEx (hrootkey, key, NULL, lpdwtype, lpvalue, &cbData) == ERROR_SUCCESS) | |
705 | { | |
706 | return (lpvalue); | |
707 | } | |
708 | ||
709 | if (lpvalue) xfree (lpvalue); | |
710 | ||
711 | RegCloseKey (hrootkey); | |
712 | } | |
713 | ||
714 | if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, REG_ROOT, 0, KEY_READ, &hrootkey) == ERROR_SUCCESS) | |
715 | { | |
716 | lpvalue = NULL; | |
717 | ||
718 | if (RegQueryValueEx (hrootkey, key, NULL, NULL, NULL, &cbData) == ERROR_SUCCESS && | |
719 | (lpvalue = (LPBYTE) xmalloc (cbData)) != NULL && | |
720 | RegQueryValueEx (hrootkey, key, NULL, lpdwtype, lpvalue, &cbData) == ERROR_SUCCESS) | |
721 | { | |
722 | return (lpvalue); | |
723 | } | |
724 | ||
725 | if (lpvalue) xfree (lpvalue); | |
726 | ||
727 | RegCloseKey (hrootkey); | |
728 | } | |
729 | ||
730 | return (NULL); | |
731 | } | |
732 | ||
733 | void | |
734 | init_environment () | |
735 | { | |
736 | /* Open a console window to display messages during dumping. */ | |
737 | if (!initialized) | |
738 | AllocConsole (); | |
739 | ||
740 | /* Check for environment variables and use registry if they don't exist */ | |
741 | { | |
742 | int i; | |
743 | LPBYTE lpval; | |
744 | DWORD dwType; | |
745 | ||
746 | static char * env_vars[] = | |
747 | { | |
748 | "emacs_path", | |
749 | "EMACSLOADPATH", | |
750 | "SHELL", | |
751 | "EMACSDATA", | |
752 | "EMACSPATH", | |
753 | "EMACSLOCKDIR", | |
754 | "INFOPATH", | |
755 | "EMACSDOC", | |
756 | "TERM", | |
757 | }; | |
758 | ||
759 | for (i = 0; i < (sizeof (env_vars) / sizeof (env_vars[0])); i++) | |
760 | { | |
761 | if (!getenv (env_vars[i]) && | |
762 | (lpval = nt_get_resource (env_vars[i], &dwType)) != NULL) | |
763 | { | |
764 | if (dwType == REG_EXPAND_SZ) | |
765 | { | |
766 | char buf1[500], buf2[500]; | |
767 | ||
768 | ExpandEnvironmentStrings ((LPSTR) lpval, buf1, 500); | |
769 | _snprintf (buf2, 499, "%s=%s", env_vars[i], buf1); | |
770 | putenv (strdup (buf2)); | |
771 | } | |
772 | else if (dwType == REG_SZ) | |
773 | { | |
774 | char buf[500]; | |
775 | ||
776 | _snprintf (buf, 499, "%s=%s", env_vars[i], lpval); | |
777 | putenv (strdup (buf)); | |
778 | } | |
779 | ||
780 | xfree (lpval); | |
781 | } | |
782 | } | |
783 | } | |
784 | } | |
785 | ||
35f0d482 KH |
786 | #ifdef HAVE_TIMEVAL |
787 | #include <sys/timeb.h> | |
788 | ||
789 | /* Emulate gettimeofday (Ulrich Leodolter, 1/11/95). */ | |
790 | void | |
791 | gettimeofday (struct timeval *tv, struct timezone *tz) | |
792 | { | |
793 | struct _timeb tb; | |
794 | _ftime (&tb); | |
795 | ||
796 | tv->tv_sec = tb.time; | |
797 | tv->tv_usec = tb.millitm * 1000L; | |
798 | if (tz) | |
799 | { | |
800 | tz->tz_minuteswest = tb.timezone; /* minutes west of Greenwich */ | |
801 | tz->tz_dsttime = tb.dstflag; /* type of dst correction */ | |
802 | } | |
803 | } | |
804 | #endif /* HAVE_TIMEVAL */ | |
805 | ||
95ed0025 RS |
806 | |
807 | #ifdef PIGSFLY | |
808 | Keep this around...we might need it later. | |
809 | #ifdef WINDOWSNT | |
810 | { | |
811 | /* | |
812 | * Find the user's real name by opening the process token and looking | |
813 | * up the name associated with the user-sid in that token. | |
814 | */ | |
815 | ||
816 | char b[256], Name[256], RefD[256]; | |
817 | DWORD length = 256, rlength = 256, trash; | |
818 | HANDLE Token; | |
819 | SID_NAME_USE User; | |
820 | ||
821 | if (1) | |
7cca72e3 | 822 | Vuser_real_login_name = build_string ("foo"); |
95ed0025 RS |
823 | else if (!OpenProcessToken (GetCurrentProcess (), TOKEN_QUERY, &Token)) |
824 | { | |
7cca72e3 | 825 | Vuser_real_login_name = build_string ("unknown"); |
95ed0025 RS |
826 | } |
827 | else if (!GetTokenInformation (Token, TokenUser, (PVOID)b, 256, | |
828 | &trash)) | |
829 | { | |
830 | CloseHandle (Token); | |
7cca72e3 | 831 | Vuser_real_login_name = build_string ("unknown"); |
95ed0025 RS |
832 | } |
833 | else if (!LookupAccountSid ((void *)0, (PSID)b, Name, &length, RefD, | |
834 | &rlength, &User)) | |
835 | { | |
836 | CloseHandle (Token); | |
7cca72e3 | 837 | Vuser_real_login_name = build_string ("unknown"); |
95ed0025 RS |
838 | } |
839 | else | |
7cca72e3 | 840 | Vuser_real_login_name = build_string (Name); |
95ed0025 RS |
841 | } |
842 | #else /* not WINDOWSNT */ | |
843 | #endif /* not WINDOWSNT */ | |
844 | #endif /* PIGSFLY */ |